I suppose that may sound a little facile, a little glib, a little too easy. But then again, everything sounds easy when you spend your entire life thinking about it hard from every angle you can conceive before even opening your fucking mouth. As long as you also, the first time anybody chimes in with something better you hain't factored in, something you didn't consider, something you need to add in - you add it in. As long as you sneak that all in first, what you have to say after is going to sound easy!
Usually when somebody tells you what they think, they're telling you what they already thought. You can often get a sense of how much work they put in, but not always - a real fundamental truth finally arrived at and fully at rest in you, that's a thing that's often going to sound very easy, maybe a little too easy.
Doesn't matter how much work you put in, though. Doesn't matter easy or hard. Like anything else, you should judge an opinion for what it's worth, not for how much work it took to get there.